Shared report: 2011-07-05 18:41:40
Status: Sharing

Report generated: VemsTune (Help menu/Vems Sharing Center by one-click)
having problems getting a clean wheel speed signal. using 1.1.94, with a hall sensor powered by the 5v from the ps2 port. the signal pin is pulled up with a 4.7k R and has protection diode. Also have a 1000hz low pass RC filter on the input to help with noise. As you can see noise only appears under boost. there is a part of the log which shows the speed register correctly up towards 100mph under no boost. Out of ideas to try! it appears to be the only input with noise. any ideas?
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Regy 2012-11-08 00:44:41
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Marcell 2011-07-11 17:04:27
Note: 1st you can try higher divider.

Than please see 1.1.95
http://www.vems.hu/wiki/index.php?page=GenBoard%2FUnderDevelopment%2FFirmwareChanges
If it's the same kind of prelling that we've seen in Sami's triggerlog the improved filter handles that.
If still not solved:
Note that only triggerlog has wheelspeed-input timestamps precise enough so we have good chance of seeing how the input pattern is abnormal.

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